73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
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/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include "output_channel.h"
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#include "formatter.h"
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#include "options.h"
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namespace lean {
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/**
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\brief State provided to internal lean procedures that need to:
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1- Access user defined options
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2- Produce verbosity messages
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3- Output results
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4- Produce formatted output
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*/
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class state {
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options m_options;
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formatter m_formatter;
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std::shared_ptr<output_channel> m_regular_channel;
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std::shared_ptr<output_channel> m_diagnostic_channel;
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public:
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state();
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state(options const & opts, formatter const & fmt);
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~state();
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options get_options() const { return m_options; }
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formatter get_formatter() const { return m_formatter; }
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output_channel & get_regular_channel() const { return *m_regular_channel; }
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output_channel & get_diagnostic_channel() const { return *m_diagnostic_channel; }
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void set_regular_channel(std::shared_ptr<output_channel> const & out);
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void set_diagnostic_channel(std::shared_ptr<output_channel> const & out);
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void set_options(options const & opts);
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void set_formatter(formatter const & f);
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};
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struct regular {
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state const & m_state;
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regular(state const & s):m_state(s) {}
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};
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struct diagnostic {
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state const & m_state;
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diagnostic(state const & s):m_state(s) {}
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};
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template<typename T>
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inline regular const & operator<<(regular const & out, T const & t) {
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out.m_state.get_regular_channel().get_stream() << t;
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return out;
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}
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template<typename T>
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inline diagnostic const & operator<<(diagnostic const & out, T const & t) {
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out.m_state.get_diagnostic_channel().get_stream() << t;
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return out;
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}
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inline regular const & operator<<(regular const & out, expr const & e) {
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out.m_state.get_regular_channel().get_stream() << out.m_state.get_formatter()(e, out.m_state.get_options());
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return out;
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}
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inline diagnostic const & operator<<(diagnostic const & out, expr const & e) {
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out.m_state.get_diagnostic_channel().get_stream() << out.m_state.get_formatter()(e, out.m_state.get_options());
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return out;
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}
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}
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